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authorSteffen Klassert <steffen.klassert@secunet.com>2011-03-15 21:12:49 +0000
committerDavid S. Miller <davem@davemloft.net>2011-03-16 12:55:36 -0700
commitfbd5060875d25f7764fd1c3d35b83a8ed1d88d7b (patch)
tree2b92c1c37178af438bd0f2b1573b61cb64117418 /net/xfrm
parent8a4eb5734e8d1dc60a8c28576bbbdfdcc643626d (diff)
downloadlinux-fbd5060875d25f7764fd1c3d35b83a8ed1d88d7b.tar.bz2
xfrm: Refcount destination entry on xfrm_lookup
We return a destination entry without refcount if a socket policy is found in xfrm_lookup. This triggers a warning on a negative refcount when freeeing this dst entry. So take a refcount in this case to fix it. This refcount was forgotten when xfrm changed to cache bundles instead of policies for outgoing flows. Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Acked-by: Timo Teräs <timo.teras@iki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/xfrm')
-rw-r--r--net/xfrm/xfrm_policy.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 027e3c6fb7e4..15792d8b6272 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -1804,6 +1804,8 @@ restart:
goto no_transform;
}
+ dst_hold(&xdst->u.dst);
+
spin_lock_bh(&xfrm_policy_sk_bundle_lock);
xdst->u.dst.next = xfrm_policy_sk_bundles;
xfrm_policy_sk_bundles = &xdst->u.dst;